Search Results - "Riede , Moritz"
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The role of charge recombination to triplet excitons in organic solar cells
Published in Nature (London) (30-09-2021)“…The use of non-fullerene acceptors (NFAs) in organic solar cells has led to power conversion efficiencies as high as 18% 1 . However, organic solar cells are…”
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Influence of Hole-Transport Layers and Donor Materials on Open-Circuit Voltage and Shape of I-V Curves of Organic Solar Cells
Published in Advanced functional materials (07-06-2011)“…The effect of injection and extraction barriers on flat heterojunction (FHJ) and bulk heterojunction (BHJ) organic solar cells is analyzed. The barriers are…”
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3
Perspectives of Organic and Perovskite‐Based Spintronics
Published in Advanced optical materials (01-07-2021)“…Spin‐related phenomena in optoelectronic materials can revolutionize several technological applications in the areas of data processing and storage, quantum…”
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4
Efficient charge generation by relaxed charge-transfer states at organic interfaces
Published in Nature materials (01-01-2014)“…Interfaces between organic electron-donating (D) and electron-accepting (A) materials have the ability to generate charge carriers on illumination. Efficient…”
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Controlling energy levels and Fermi level en route to fully tailored energetics in organic semiconductors
Published in Nature communications (05-12-2019)“…Simultaneous control over both the energy levels and Fermi level, a key breakthrough for inorganic electronics, has yet to be shown for organic semiconductors…”
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Structured Organic-Inorganic Perovskite toward a Distributed Feedback Laser
Published in Advanced materials (Weinheim) (03-02-2016)“…A general strategy for the in‐plane structuring of organic–inorganic perovskite films is presented. The method is used to fabricate an industrially relevant…”
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Open-Circuit Voltage and Effective Gap of Organic Solar Cells
Published in Advanced functional materials (10-12-2013)“…The open‐circuit voltage (VOC) of an organic solar cell is limited by the donor‐acceptor material system. The effective gap Egeff between the electron affinity…”
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8
Assessing the Photovoltaic Quality of Vacuum‐Thermal Evaporated Organic Semiconductor Blends
Published in Advanced materials (Weinheim) (01-06-2022)“…Vacuum‐thermal evaporation (VTE) is a highly relevant fabrication route for organic solar cells (OSCs), especially on an industrial scale as proven by the…”
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The role of spin in the degradation of organic photovoltaics
Published in Nature communications (20-01-2021)“…Stability is now a critical factor in the commercialization of organic photovoltaic (OPV) devices. Both extrinsic stability to oxygen and water and intrinsic…”
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10
Synthesis and Characterization of Near-Infrared Absorbing Benzannulated Aza-BODIPY Dyes
Published in Chemistry : a European journal (01-03-2011)“…A series of novel aza‐diisoindolmethine dyes 9 with six different aryl and heteroaryl groups at the indole moiety have been synthesized by the addition of aryl…”
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Intrinsic non-radiative voltage losses in fullerene-based organic solar cells
Published in Nature energy (10-04-2017)“…Organic solar cells demonstrate external quantum efficiencies and fill factors approaching those of conventional photovoltaic technologies. However, as…”
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Adduct-based p-doping of organic semiconductors
Published in Nature materials (01-09-2021)“…Electronic doping of organic semiconductors is essential for their usage in highly efficient optoelectronic devices. Although molecular and metal complex-based…”
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13
Geminate and Nongeminate Pathways for Triplet Exciton Formation in Organic Solar Cells
Published in Advanced energy materials (01-04-2022)“…Organic solar cells (OSCs) have recently shown a rapid improvement in their performance, bringing power conversion efficiencies to above 18%. However, the…”
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14
Emissive brightening in molecular graphene nanoribbons by twilight states
Published in Nature communications (06-04-2024)“…Carbon nanomaterials are expected to be bright and efficient emitters, but structural disorder, intermolecular interactions and the intrinsic presence of dark…”
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15
Increased Open-Circuit Voltage of Organic Solar Cells by Reduced Donor-Acceptor Interface Area
Published in Advanced materials (Weinheim) (18-06-2014)“…The charge carrier lifetime in small molecule: C60 photovoltaic devices is increased by reducing the physical interface area availabe for recombination. For…”
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16
Enhanced Amplified Spontaneous Emission in Perovskites Using a Flexible Cholesteric Liquid Crystal Reflector
Published in Nano letters (12-08-2015)“…Organic–inorganic perovskites are highly promising solar cell materials with laboratory-based power conversion efficiencies already matching those of…”
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17
Dominating recombination mechanisms in organic solar cells based on ZnPc and C60
Published in Applied physics letters (22-04-2013)“…We investigate the dominating recombination mechanisms in bulk heterojunction solar cells, using a blend of ZnPc and C60 as model system. Analyzing the…”
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Efficient Organic Tandem Solar Cells based on Small Molecules
Published in Advanced functional materials (23-08-2011)“…In this paper, two vacuum processed single heterojunction organic solar cells with complementary absorption are described and the construction and optimization…”
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Dicyanovinyl-Substituted Oligothiophenes: Structure-Property Relationships and Application in Vacuum-Processed Small Molecule Organic Solar Cells
Published in Advanced functional materials (08-03-2011)“…Efficient synthesis of a series of terminally dicyanovinyl (DCV)‐substituted oligothiophenes, DCVnT 1–6, without solubilizing side chains synthesized via a…”
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Organic solar cells based on a novel infrared absorbing aza-bodipy dye
Published in Solar energy materials and solar cells (01-04-2012)“…For high efficiencies, organic solar cells have to harvest a large part of the solar spectrum. However, in particular for small molecule based cells, efficient…”
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